I finally stopped trusting the tool offset sheet and started touching off every tool by hand
The sheet said my 1/2 inch end mill was set perfect, but the first part came out .018 oversize, so I jogged it down and touched off on a gauge block instead. Now I do that on every setup, even when the sheet looks right, and my scrap rate on a 200 piece run last month dropped to almost nothing. Anyone else find the sheet drifts after a few tool changes?